Knife block



FIG. 1 is a front, left side perspective view of a knife block, and the front, right side perspective view being a mirror image thereof, showing my new design.

FIG. 2 is a left side view thereof, and the right side view being a mirror image thereof.

FIG. 3 is a top view thereof.

FIG. 4 is a bottom view thereof.

FIG. 5 is a rear view thereof; and,

FIG. 6 is a front view thereof. 

CLAIM The ornamental design for a knife block, as shown and described. 